# Crystal Synth XT vs Cube Synth

The clearest difference is rating: Crystal Synth XT at 4.9 against Cube Synth's 4.7. Crystal Synth XT also leads on device support (3 vs 1). Cube Synth's advantage is price ($1.99 vs $4.99) and review sentiment (89% vs 78%). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

Crystal Synth XT costs $4.99 and Cube Synth $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Crystal Synth XT holds the better App Store score, 4.9 against 4.7. Both are backed by a comparable volume of ratings — 20 and 16 respectively. Written reviews complicate that: 78% of Crystal Synth XT's written reviews are positive against 89% of Cube Synth's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on September 21, 2026 and August 9, 2026 respectively.

## The numbers

| Metric | Crystal Synth XT | Cube Synth |
| --- | --- | --- |
| Price | $4.99 | **$1.99** |
| Rating | **[4.9 (20 ratings)](https://appshunter.io/ios/app/crystal-synth-xt/id408288370/reviews)** | [4.7 (16 ratings)](https://appshunter.io/ios/app/cube-synth/id704213054/reviews) |
| Number of ratings | **20** | 16 |
| Positive reviews | 78.4% of reviews | **89.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | Every 4 months |
| Monetization | Paid | Paid |
| Size | 36 MB | 19 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Green Oak Software](https://appshunter.io/developer/355342717) | [Harry Gohs](https://appshunter.io/developer/382428644) |

## What reviewers say

### Crystal Synth XT

[App page](https://appshunter.io/ios/app/crystal-synth-xt/id408288370)

Create lush, evolving soundscapes with a powerful semi-modular synthesizer for mobile devices. Explore subtractive and FM synthesis, extensive modulation, and built-in effects. Share sounds with the desktop version and connect MIDI keyboards for a full hardware synth experience.

**Highlights:** Semi-modular synthesis engine, Subtractive and FM synthesis, Extensive modulation control (>90 parameters), Multi-stage envelopes with graphical editors, Tempo-synced envelopes, LFOs, and delays, Built-in effects (chorus, flanger, echo), MIDI keyboard input and virtual MIDI support

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🎶 Fantastic sound quality
- 💡 Innovative breed function
- 🎛️ Deep sound design capabilities
- 🎹 Versatile synth
- ✨ Unique and creative sounds

**What reviewers complain about**

- 🐛 Occasional crashes
- ⚠️ Preset system issues (folders, access)
- 🐌 Outdated interface
- 🔌 Lacks AUv3 support (frequently requested)
- 🔊 Crackling/popping sounds

**Reported bugs**

- App not working, splash screen disappears
- Screen in background
- Envelope points not moving
- Breed fan not working properly
- Crashing on launch

**Requested features**

- AUv3 support
- Update to an AU3 standard
- Newer interface
- Fix breed fan access to all presets
- Fix preset system variations between devices


### Cube Synth

[App page](https://appshunter.io/ios/app/cube-synth/id704213054)

Explore additive synthesis with intuitive sound morphing and deep parameter control. Create complex soundscapes, vocal phrases, or rhythms with ease. Offers a unique randomizer for instant patch generation.

**Highlights:** Additive synthesis engine, Intelligent sound morphing, Over 400 sound presets, Programmable arpeggiator, Multiple built-in effects, Audiobus and Inter-app audio support, Random sound patch generator

**In-app purchases:** none


## Frequently asked questions

### Is Crystal Synth XT free?

Crystal Synth XT costs $4.99, with no in-app purchases.

### Is Cube Synth free?

Cube Synth costs $1.99, with no in-app purchases.

### Which has better reviews, Crystal Synth XT or Cube Synth?

Crystal Synth XT is rated higher. Crystal Synth XT averages 4.9 out of 5 from 20 ratings, while Cube Synth averages 4.7 from 16 ratings.

### Do Crystal Synth XT or Cube Synth have ads?

Neither Crystal Synth XT nor Cube Synth shows ads.

### Which is updated more often, Crystal Synth XT or Cube Synth?

Crystal Synth XT ships an update every 4 months, and Cube Synth every 4 months. Most recently, Crystal Synth XT was updated on September 21, 2026 and Cube Synth on August 9, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*